基础比率

Abstract］ Objective To explore the effect of radiotherapy on the auxesis of Hela cell in cervix carcinoma to offer the theory elements to identify whether or not the cervix carcinoma would be treated by radiotherapy with non-routine segmentation.Methods After radiotherapy with different doses,the Hela cells changes of potential doubling time by cytometry with trypanblau coloration were analysed,and the livability of clonogenic cell at the same time was detected by clone,and the two former were combined to aralyse the changes.

目的 探讨放射对宫颈癌Hela细胞系再增殖的影响，宫颈癌是否有必要实行非常规分割放疗提供定的理论基础方法在不同剂量的放射作用下，以台盼蓝染色细胞计法分析Hela在照射后不同时间点的潜在倍增时间的变化；以克隆形成实验检测其同期克隆源性细胞存活比率，并将两者结合分析。

Abstract］ objective to explore the effect of radiotherapy on the auxesis of hela cell in cervix carcinoma to offer the theory elements to identify whether or not the cervix carcinoma would be treated by radiotherapy with non-routine segmentation.methods after radiotherapy with different doses,the hela cells changes of potential doubling time by cytometry with trypanblau coloration were analysed,and the livability of clonogenic cell at the same time was detected by clone,and the two former were combined to aralyse the changes.results （1）tpot shortening was observed in hela cell after radiotherapy.

目的 探讨放射对宫颈癌hela细胞系再增殖的影响，为宫颈癌是否有必要实行非常规分割放疗提供一定的理论基础。方法在不同剂量的放射作用下，以台盼蓝染色细胞计数法分析hela在照射后不同时间点的潜在倍增时间的变化；以克隆形成实验检测其同期克隆源性细胞存活比率，并将两者结合分析。

A subprime borrower has been defined by the 2001 Interagency Expanded Guidance for Subprime Lending Programs as one who displays a range of credit risk characteristics on a general basis which includes, among other things, two or more 30-day delinquencies in the last 12 months; judgment, foreclosure, repossession, or charge-off in the prior 24 months; bankruptcy in the last five years; or a debt service-to-income ratio of 50 percent or greater.

阿优抵押人已被定义为一个谁上显示一般基础，包括信用风险特征的范围由2001年间扩大指导次级抵押贷款程序，除其他外，两个或两个以上30天的拖欠，在过去12个月；判决，取消抵押品赎回权，收回，或撇在前24个月；破产，在过去5年；或偿债到百分之五十或更高收入的比率。

In fact to determine the significance of not particularly great, it just gives you a basis for allocation of funds, for example, you still have 50% of the cash, if the 2000 points you can cash and stock for further distribution to the ratio of 6: 4 , 6 percent of shares, 4 percent of cash; if we go to 1,800 points, you can stock 7 percent, 3 percent of the cash.

事实上，确定没有特别重大的意义，它只是给你一个拨款的基础上，例如，你还有50％的现金，如果2000点你可以现金和股票，以进一步分配的比率6：4，百分之六的股份，百分之四的现金；如果到1800点，您就可以储存百分之七，百分之三的现金。

In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

As a solution, a new gray-level value natural logarithm ratio range filter kernel is pointed out for the Bilateral filtering, a representative method of Neighborhood filters.

在此基础上针对具有代表性的双边滤波模型进行修改，提出新的灰度值自然对数比率相似函数模型。

Based on the analysis of the mathematics models of saturation steam density and superheat steam density the paper states that the deviation of the detection on temperature highly affects the accuracy of intelligent flow totalizer.

文摘：在分析饱和蒸汽和过热蒸汽密度的数学模型的基础上指出，温度检测的偏差对智能流量积算仪的精度影响极大，尤其是饱和蒸汽，测温电路的精度应设计为远高于仪表的精度，同时引入一种基于比率法的高精度测温电路。

The author presents a new sampling method based on a lot of experiments. Tractability of sampling rate and the speediness of this method is also confirmed.

作者在大量实验的基础上提出了IP包头标识字段取模抽样方法，该方法具有抽样比率易控制、效率高的优点。

The half-seed method system of Agrobacterium-mediated soybean transformation was researched applying healthy explants rates, resistant tufty shoots and elongated shoots as targets. Explants of soybean grow well in environments with abundant light and oxygen in cocultivation.

以农杆菌介导的半种法大豆遗传转化系统为基础，对目的基因进行转化；以健康外植体获得率、抗性丛生芽获得率和抗性芽伸长比率为指标，对转化系统条件进行优化。

Every bank is required to maintain a liquidity ratio of not less than 25% in each calendar month, calculated on the basis of the sum of its liquefiable assets and the sum of its qualifying liabilities for each working day of the calendar month concerned.

各家银行要求每月的流动性比率不低于25％，计算的基础是以每月工作日的流动性资产总量除以每月工作日的负债总量。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。